System solution for two-phase electric machine used for vehicle propulsion

A vehicle comprising:

• a two-phase electric drivetrain, comprising:
• a plurality of cell-level control units, wherein each cell-level control unit of the plurality of cell-level control units respectively comprises:
• one or more battery cells,
• an h-bridge operable as a cell-level inverter, and
• a DC/DC converter, in parallel with the h-bridge, that converts battery cell voltage to an output voltage,
• wherein the plurality of cell-level control units is arranged into a pair of control unit strings comprising a first control unit string and a second control unit string.

A method for propelling an electric vehicle comprising:

• closing a pair of leg switches, wherein the pair of leg switches is located respectively between a two-phase electric machine and a pair of control unit strings, wherein closing the pair of leg switches enables power supply from the pair of control unit strings to respective phases of the two-phase electric machine;
• and
• opening an end switch that prevents charging of the pair of control unit strings via an external power source,
• wherein each control unit string of the pair of control unit strings comprises a respective plurality of cell-level control units, wherein each cell-level control unit of the respective plurality of cell-level control units respectively comprises:
• one or more battery cells,
• an h-bridge operable as a cell-level inverter, and
• a DC/DC converter, in parallel with the h-bridge, that converts battery cell voltage to an output voltage.